满分5 >
高中数学试题 >
函数的图象关于( ) A.y轴对称 B.直线y=-x对称 C.坐标原点对称 D....
函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101222351919268231/SYS201311012223519192682004_ST/0.png)
的图象关于( )
A.y轴对称
B.直线y=-x对称
C.坐标原点对称
D.直线y=x对称
考点分析:
相关试题推荐
下列函数中,在其定义域内既是奇函数又是增函数的是( )
A.y=-x
2+5(x∈R)
B.y=-x
3+x(x∈R)
C.y=x
3(x∈R)
D.
查看答案
设a∈(0,1),则函数y=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101222351919268231/SYS201311012223519192682002_ST/0.png)
的定义域是( )
A.(1,2]
B.(1,+∞)
C.[2,+∞)
D.(-∞,2]
查看答案
设函数f(x)=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101222351919268231/SYS201311012223519192682001_ST/0.png)
,则f(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101222351919268231/SYS201311012223519192682001_ST/1.png)
)的值为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101222351919268231/SYS201311012223519192682001_ST/2.png)
B.-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101222351919268231/SYS201311012223519192682001_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101222351919268231/SYS201311012223519192682001_ST/4.png)
D.18
查看答案
全集U=R,A={x|x(x+3)<0},B={x|x<-1},则阴影部分表示的集合为( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101222351919268231/SYS201311012223519192682000_ST/images0.png)
A.{x|x>0}
B.{x|-3<x<0}
C.{x|x<-1}
D.{x|-3<x<-1}
查看答案
已知数列{a
n}的前n项和为S
n,且对任意正整数n,有S
n,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101222351918879354/SYS201311012223519188793020_ST/0.png)
,n(a≠0,a≠1)成等差数列,令b
n=(a
n+1)lg(a
n+1).
(1)求数列{a
n}的通项公式a
n(用a,n表示)
(2)当
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101222351918879354/SYS201311012223519188793020_ST/1.png)
时,数列{b
n}是否存在最小项,若有,请求出第几项最小;若无,请说明理由;
(3)若{b
n}是一个单调递增数列,请求出a的取值范围.
查看答案